Tubing cassette



FIG. 1 shows a perspective view of an embodiment of a tubing cassette embodying our new design;

FIG. 2 shows a top plan view of the tubing cassette of FIG. 1;

FIG. 3 shows a bottom plan view of the tubing cassette of FIG. 1;

FIG. 4 shows a front view of the tubing cassette of FIG. 1;

FIG. 5 shows a rear view of the tubing cassette of FIG. 1;

FIG. 6 shows a first side view of the tubing cassette of FIG. 1; and,

FIG. 7 shows a second side view of the tubing cassette of FIG. 1. 

The ornamental design for a tubing cassette, substantially as shown and described. 